干旱区生态环境知识资源中心(Arid): Effect of enclosure on reproductive allocation of wheatgrass Agropyron mongolicum populations in desert steppes

Arid

DOI	10.1002/ece3.5839
	Effect of enclosure on reproductive allocation of wheatgrass Agropyron mongolicum populations in desert steppes
	Li, Guoqi 1,2; Zhao, Panpan 1,2; Shao, Wenshan 1,3; Jin, Changqing 1,2; Song, Lixiao 1,2; Chen, Yanyun 1,2
通讯作者	Li, Guoqi
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:24 页码:14023-14030
英文摘要	Plants generally adopt different reproductive strategies to adapt to their environments and increase their fitness. Here, we studied the effects of enclosure cultivation on the reproductive allocation of a wheatgrass species Agropyron mongolicum in the Desert steppes of Northern China. The results showed that: (a) after enclosure cultivation, the height, clump width, coverage, and clump biomass of A. mongolicum significantly increased by 78.96% (p = .040), 63.50% (p = .013), 50.89% (p = .032), and 205.38% (p = .022), respectively, whereas density did not show a significant change (p = .330). (b) Enclosure cultivation significantly affected the biomass of A. mongolicum. Compared with cultivation outside the fence, root, leaf, and spike biomass of A. mongolicum inside the fence significantly increased by 183.52% (p = .020), 334.09% (p = .011), and 381.25% (p = .005), respectively. In addition, root biomass was the highest among the components (38.53 and 13.59 g inside and outside the fence, respectively) and spike biomass was the lowest (6.16 and 1.28 g inside and outside the fence, respectively). (c) Enclosure cultivation affected elemental nutrient allocation and the caloric values of various components of A. mongolicum, and the caloric values are positively correlated with carbon, nitrogen, and phosphorus contents. Enclosure cultivation significantly reduced carbon, nitrogen, and phosphorus in the roots, as well as nitrogen and phosphorus in the spikes, but significantly increased nitrogen in the spikes by 9.78%. The caloric values of A. mongolicum inside and outside the fence in decreasing order were as follows: spikes > leaves > stems > roots. Comparison of cultivation effects between inside and outside the fence showed that the caloric values of the spikes and roots significantly increased by 0.92% and 1.60%, respectively, whereas those of the leaves significantly decreased by 0.70%. Our results demonstrate that the reproductive allocation of elemental nutrients and caloric values in nonreproductive and reproductive organs are plastic to arid environments.
英文关键词	Agropyron mongolicum desert steppes enclosure reproductive allocation
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000497120600001
WOS关键词	PLANT ; DIVERSITY ; ECOSYSTEM ; NITROGEN ; BIOMASS ; RATIOS
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
EI主题词	2019-11-19
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310927
作者单位	1.Ningxia Univ, Breeding Base State Key Lab Land Degradat & Ecol, Yinchuan 750021, Ningxia, Peoples R China; 2.Ningxia Univ, Key Lab Recovery & Restorat Degraded Ecosyst Nort, Minist Educ, Yinchuan, Peoples R China; 3.Forestry Technol Extens Ctr Liangzhou Dist Wuwei, Wuwei, Peoples R China
推荐引用方式 GB/T 7714	Li, Guoqi,Zhao, Panpan,Shao, Wenshan,et al. Effect of enclosure on reproductive allocation of wheatgrass Agropyron mongolicum populations in desert steppes[J],2019,9(24):14023-14030.
APA	Li, Guoqi,Zhao, Panpan,Shao, Wenshan,Jin, Changqing,Song, Lixiao,&Chen, Yanyun.(2019).Effect of enclosure on reproductive allocation of wheatgrass Agropyron mongolicum populations in desert steppes.ECOLOGY AND EVOLUTION,9(24),14023-14030.
MLA	Li, Guoqi,et al."Effect of enclosure on reproductive allocation of wheatgrass Agropyron mongolicum populations in desert steppes".ECOLOGY AND EVOLUTION 9.24(2019):14023-14030.